Composition.



UNITED STATES P ENT JOHN II. WILSON, OF INDIANAPOLIS, INDIANA, ASSIGNOR TON-ATIONAL INSULATING AND= MFG. 00., OF INDIANAPOLIS, IN-DIANA.

COMPOSIIION.

Specification of Letters Patent.

Patented July 233 19.07

Application filed-Tannery 16,1907; Serial'No. 362,556.

county ofMarion and StateofiIndiana, have inventednewsand' useiullmprovemcnts in Gomposition, of which theiollowingis a5 specification.

My composition. consistent the following ingredients co nhined in the-proportions-stated; viz:

"Rye flout. 325' pounds Sa1esodtt...,-..,; 6 Giiin=arabic-. 3 v l I V l I I 3 K SW11: A 2 block 1 Sa1i?...--....t.--,,.. ....,.v..... .\t. 1- vitriol? (Su1fl1ri'(: acid):. .4. Q 1 l:

The above, ingredients: are to be thoroughly mixed by; stirring. V

Aftenthe mass has: been thoroughly.- stirred and all? the ingredients-a combined mpel-1y thereby; the reuntil a; coating in: sheathing'ofi enydesi'redithickness is jglficed eroundthe pipe, makinga'lcontinuous,tjointless L covering: therefor.-

Thecompositionembodyinggthe ingredients emimer I 'ated is in. the form: offend. graoticallyconstitutes, 2. Ce-

mcnt, thegertgthiaribfi'clbsefi adhering together and to "the, pipetf which the mass as ai whole is applied.

' wool felt v with the compo Ordinarily, the ingredients, after being miJ cedare thoroughly cooked by steam. The covering is ap-.

lplicable either to pipes IlSQdJ to convey-hot water on steam or tocold water pipes, beingcffective eqnell'yx in connectionwith both.

' The methodof eoveringtwpipe consists infirstalaying out a sheet ofLasbestos-papn or fabric the length of-tlie. pipe to-be covered betwoenfittings or hangers ,-.then

- applying a coating of'the composition or cement there to, then-Wrapping the sheet, so-c0ated ,'around the pipe;

the cement fastening the sheet to the pipo-andclbsing;

the pores of'theasbestosisheet; themcoating, asheet- 01 n-or cement, and' apply-- ing the same ziroundEgth'e p i iolisly applied covering; v

this process being continued until? arcoveringofthe requisite thickness. is-ohtained;

When applied to acpipeyi'n the-:rnanner.described, the

overing oicoetingconstitutee aw nomconductor-z for heat and cold and prevents, to aagreat: extent; thecjone tents ofthe pipe fromtbeing in fiuenced outside at mospheric conditions;

I- cIaim:

. Theheirein described'composition ot-metter'tormiii' fro flour, soda, gum arabi'c, alum, starch, lamp black, sal'tfzm sulfuric acid, substantially; as'descflhedkand'for the ll 11 1";

pose specified. A

In, testimony whereof; I= aflix m1 of two witnesses.-

signature In presence 

